141results about "Portable bridge" patented technology

The invention discloses a steel-concrete composite structure continuous bridge and a reinforcement design method suitable for the steel-concrete composite structure continuous bridge, and the reinforcement design method suitable for the steel-concrete composite structure continuous bridge comprises the following steps: S10, detecting the bridge to obtain a detection evaluation result of the bridge; s20, on the basis of the detection and evaluation result, a bridge reinforcing scheme is obtained in combination with use factors of the bridge; s30, on the basis of the bridge reinforcement scheme, re-checking calculation is conducted through modeling, and structural safety reserve is judged; and S40, based on the step S30, if the structure safety reserve does not meet the safety value, the reinforcing design parameters are adjusted, and re-checking is repeated until the structure safety reserve meets the safety value. The continuous bridge with the steel-concrete composite structure is reinforced based on the reinforcement design method. Therefore, the problems that the bearing capacity of the continuous bridge of the steel-concrete composite structure is insufficient in the bearing capacity limit state and the crack width exceeds the limit in the normal use limit state are solved, the bearing performance of the bridge is improved, and smooth and safe traffic operation is ensured.

The invention provides tunnel inverted arch trestle construction equipment, and belongs to the technical field of tunnel construction equipment. The tunnel inverted arch trestle construction equipment comprises a trestle, an arch bottom surrounding rock excavation device is arranged at the front end of the trestle, the rear end of the trestle is connected with a rear slope bridge, the arch bottom surrounding rock excavation device is provided with an independent walking mechanism, and a main body part of the arch bottom surrounding rock excavation device is located on the front side of the trestle. The arch bottom surrounding rock excavation device comprises a front slope bridge and a transition bridge connecting the front slope bridge and the trestle bridge, the rear portion of the transition bridge and the front portion of the trestle bridge are provided with an overlapping part, the overlapping part can relatively slide front and back, and the maximum length of the overlapping part is larger than the single excavation stroke of forward excavation of the arch bottom surrounding rock excavation device. The arch bottom surrounding rock excavation device can conduct excavation forwards without the help of a feeding driving piece connected to the trestle, the problems that stability is poor and trestle supporting is not stable due to the fact that the feeding driving piece is used are solved, the transition bridge and the trestle are always kept in the connection state in the excavation process, and the normal traffic function is guaranteed.

A ramp system is disclosed which may include first and second components. The first component may include horizontal and vertical portions, and a hook. The horizontal portion may be supported by a lip of a structure, and may have a width equivalent to a length of the lip. The vertical portion may be coupled with, and hang downward from, the horizontal portion, and may have the same width as the horizontal portion. The hook may be coupled with the vertical portion, and may have the same width as the horizontal portion. The second component may include a protrusion and channel. The protrusion may have a width equal or less than the width of the horizontal portion, and be supported by the hook. The channel may be coupled with the protrusion, and have the same width. The channel may receive a planar component which forms a sloped surface of a ramp.

The utility model relates to the technical field of road bridge engineering, in particular to a road bridge construction steel structure temporary bridge structure which comprises a cover beam, a bridge plate, a clamping block, an abutting frame, a fixing rod, a locking assembly and a shockproof assembly, the cover beam is fixedly installed on a stand column, a clamping groove is formed in the cover beam, and the clamping groove penetrates through the cover beam and extends into the cover beam. The clamping block is embedded into the clamping groove and fixedly connected with the bridge plate, the abutting frame penetrates through the clamping groove and abuts against the clamping block, the fixing rod is installed on the cover beam through the locking assembly and fixedly connected with the abutting frame, the shockproof assembly is installed on the cover beam, and the clamping block on the bridge plate is in sliding fit with the clamping groove in the cover beam. According to the temporary bridge structure, the clamping blocks drive the bridge plate to be installed on the cover beam, and the bridge plate is fixed through the locking assemblies, so that the temporary bridge structure is rapidly installed and disassembled, the work amount of a temporary bridge is reduced, and unnecessary prolonging of the construction period is avoided.

The application discloses a bridge mechanism of an amphibious bridge and belongs to the technical field of transportation. The bridge mechanism is suitable for the amphibious bridge and comprises a bridge span. The bridge mechanism comprises two middle bridge joints connected with each other, has a V-shaped bottom shape, and has a top plane structure used for passing of driving equipment; two end bridge joints connected to two ends of the two middle bridge joints through a bridge joint turnover mechanism, the turnover mechanism is used for lifting up the end bridge joints as the fulcrum relative to the connecting position with the middle bridge joints; and a plurality of air bag assemblies symmetrically connected to the side of the middle bridge joint. The amphibious bridge combines the land dry ditch bridge and the water ferry, can overcome the dry ditch obstacle on land and the river obstacle on water, and meets the double needs of smoothly passing the water and land obstacles.

The utility model belongs to the technical field of highway bridges, and discloses an assembled highway steel bridge positive head bridge end container unit. The positive head bridge end packaging unit is composed of two truss units and comprises a plurality of symmetrically-arranged trusses, supporting frames are arranged at the tops of the trusses, fixing frames are arranged at the lower ends of the trusses, the two trusses form a space structure through the supporting frames and the fixing frames so as to be provided with positive head bridge end accessories such as bridge bases, wind-resistant pull rods and positive head end columns, and the positive head bridge end accessories are fixedly connected through binding devices. Meanwhile, a truss male head spacer block and a truss female head spacer block are arranged on the two sides between the truss units respectively and connected with the trusses on the corresponding sides in a penetrating mode through end column screw units, the other ends of the truss male head spacer blocks and the truss female head spacer blocks are fixed through flat washers and first nuts, and therefore the male head bridge end container unit is formed. In the operation of emergency response steel bridge erection, the number of operators is greatly reduced, the labor intensity is reduced, the operation time is shortened, accessory omission is avoided, the safety risk is reduced, and the loading advantage is better played.

The invention relates to the technical field of telescopic gallery bridges, and discloses a sectional type liftable telescopic gallery bridge which comprises a first fixed gallery bridge, a telescopic gallery bridge and a second fixed gallery bridge, and the telescopic gallery bridge is located between the first fixed gallery bridge and the second fixed gallery bridge. Wall bodies are arranged on the sides, away from the telescopic gallery bridge, of the first fixed gallery bridge and the second fixed gallery bridge correspondingly, and channels are formed in the wall bodies. According to the invention, the three-section segmented structural design of the first fixed gallery bridge, the telescopic gallery bridge and the second fixed gallery bridge is adopted; when the two ends of the telescopic gallery bridge are in butt joint with the first fixed gallery bridge and the second fixed gallery bridge correspondingly, a closed passage gallery bridge communicating wall body channels at the two ends can be formed, and the barrier-free transfer requirement of personnel and materials is met; when the telescopic gallery bridge is retracted and stored into the first fixed gallery bridge, an unshielded passing space is formed between the first fixed gallery bridge and the second fixed gallery bridge, and barrier-free passing of operation vehicles, large equipment and fire-fighting vehicles can be met.

The invention relates to a gravity type anchoring super-long cableway bridge in a complex wind field alpine and canyon area and a construction method, which are characterized by comprising the following construction steps: step 1, construction preparation; step 2, rock anchor cable construction; thirdly, concrete anchorage pier construction is conducted; fourthly, I-shaped steel distribution anchor beams are installed; step 5, mounting a bearing cable; sixthly, a handrail steel rope is installed; seventhly, bridge deck system cross beams are installed; 8, mounting a bridge floor steel wire mesh; ninthly, angle steel guardrails are installed; and tenthly, wind cable construction is conducted. The cableway bridge is constructed above the riverway in the alpine and gorge area of the complex wind field to assist in construction of rigid frame bridge beams and pier columns, and the problems that no construction road exists on cliff walls on the two sides of the riverway, water flow kicks rapidly in the waterlogging period, and transportation of materials, personnel and small construction machines cannot be conducted are solved.

The utility model relates to a compensation type offshore stable side bridge which comprises a base, an orientation rotary table, a rotary driver, a lower orientation driving rotary table bearing, a swing U-shaped frame, a lifting U-shaped frame and a swing heaving driver. The first end of the azimuth turntable is connected with the base through a lower azimuth driving turntable bearing to form a first rotating pair; the second end of the orientation rotary table is in sliding connection with the first end of the swing U-shaped frame to form a second rotating pair, and a rotary driver is arranged in the middle of the second end of the orientation rotary table. The ship swing compensation is realized through linkage of rotation of the azimuth turntable, swing lifting of the swing U-shaped frame, the lifting U-shaped frame and the door-shaped frame, pitching of the azimuth turntable and yawing and telescopic motion of the telescopic yawing integrated box bridge, and the ship swing compensation device has the characteristics of compact structure and large compensation range, and can have the functions of a ship crane and a pedestrian path; and meanwhile, offshore hoisting operation and offshore personnel transfer operation are realized.

The application discloses a flyable emergency assembly type bridge, which comprises a plurality of detachably connected emergency assembly type standard bridge joints; the emergency assembly type standard bridge joint comprises a bridge body, recesses are symmetrically arranged on both sides of the bridge body along the length direction of the bridge body, and spaces for storing two groups of flying devices are formed; when the emergency assembly type standard bridge joint forms a bridge, all components of the bridge are stored in a folded mode; when the bridge is used as a flying device, all components of the flying device are unfolded to form flying arms of the bridge body. The application changes the traditional bridge structure, can complete the assembly of the bridge structure in the air, is not affected by sites and other dangerous factors, greatly improves the safety of construction operation, can fly, is fast and convenient, and can strive for more valuable time for rescue and disaster relief, can be automatically operated, can be remotely controlled, saves labor, and improves construction efficiency. The application can be repeatedly used, is flexible and mobile, one set of equipment can continuously guarantee the connection of important traffic lines, reduces energy consumption, and saves cost.

The invention discloses a folding type moving channel convenient for bridge construction, and relates to the technical field of bridge construction, the folding type moving channel comprises a steel plate, two pairs of guardrails are fixedly mounted on the surface of the steel plate, a pair of handrail stand columns I is rotatably mounted at each of the two ends of the steel plate, and a pair of tie rods I is rotatably mounted at each of the two ends of the bottom of the steel plate; a bearing rod and a first pin shaft are installed between the first handrail stand column and the steel plate and between the first tie rod and the steel plate in a sliding mode. The device achieves the effects of improving the moving convenience of a construction fracture and meanwhile achieving rapid installation and flexible movement, and solves the problems that although a simple channel facilitating passing can be provided at the bridge construction position in the prior art, installation is complex, the supporting effect on the middle of the channel is poor, and in addition, when the position needs to be replaced, the construction efficiency is high. And flexible movement cannot be carried out.

The utility model discloses a connector of a foldable emergency bridge, which is used for connecting a bridge section main truss and a bridge deck system and comprises a bridge deck system connector, a connector with a sliding groove and a locking piece. The joint with the sliding chute is fixedly connected with the bridge section main truss; one side of the bridge deck system connector is fixedly connected with a bridge deck system, the upper portion of the other side of the bridge deck system connector is in sliding fit with a sliding groove in the connector with the sliding groove, the sliding groove is formed in the length direction of the connector with the sliding groove, and the lower portion of the other side of the bridge deck system connector is fixedly connected with the connector with the sliding groove overturned in place through a locking piece. According to the utility model, the erection speed can be improved.

The application discloses a vehicle-mounted large-span emergency mechanical drawbridge, which comprises a carrying vehicle, a vehicle frame arranged on the carrying vehicle, a bearing frame arranged on the vehicle frame, and an end of the vehicle frame being hinged to the bearing frame, and the bearing frame being used for bearing a drawbridge body; the drawbridge body comprises a first bridge deck and a second bridge deck which are hinged to each other, the second bridge deck can be folded above the first bridge deck to form a storage state, the second bridge deck can be unfolded and arranged on the same horizontal plane with the first bridge deck to form a setting state, and the drawbridge body in the setting state can be arranged at a river, a gully or the like as a temporary bridge. The application has the advantages of ingenious structure design and high automation degree, the difficulty of loading and unloading and setting of the drawbridge body is reduced through cooperation of the inclined bearing frame and a winch assembly during bridge setting, the drawbridge body is folded to be stored or unfolded, the span of the drawbridge body is increased while the drawbridge body is conveniently transported, and the drawbridge body can be continuously set to expand the use environment.

The invention provides a landscape plank road construction plate gap adjusting mechanism, and relates to the technical field of plank road construction, the gap adjusting mechanism comprises a gap adjusting part separably mounted on a plank road framework; the gap adjusting component is composed of adjusting rotating rods, movable reference parts and connecting cylinders, and the adjusting rotating rods and the movable reference parts are in one-to-one correspondence and achieve synchronous rotation through the connecting cylinders. The movable reference part comprises an L-shaped clamping seat, a movable reference plate and an adjusting action part, the L-shaped clamping seat is connected with the side edge of the plank road framework in a clamping mode to fix the position, and the movable reference plate is connected with the side edge seat plate through a telescopic rod piece. The adjusting rotating rod is driven by rotating the hand wheel part, the adjusting acting part drives the movable datum plate to move, and therefore the gap between the to-be-laid plate and the laid plate is accurately controlled. The mechanism can adapt to different framework distances, synchronous distance adjustment of multiple plates is achieved, it is guaranteed that the gaps are uniform and consistent, the construction efficiency and the gallery road attractiveness are improved, and the mechanism is simple in structure, convenient and fast to operate and suitable for continuous gallery road laying operation.

The application discloses a kind of expansion construction methods of existing railway multi-hole frame bridge keeping traffic, adopt the construction of separate hole and adopt bridge to realize traffic, maintain the normal traffic of traffic, avoid the inconvenience brought by cutting off traffic, simultaneously, bridge is used as the support structure of roof pouring construction, without setting additional formwork support structure, both guarantee the stability of support, and avoid the influence of support structure on traffic, while meeting the traffic demand, guarantee the safety and reliability of roof construction.

The utility model belongs to the field of constructional engineering, and particularly relates to an assembly type foundation pit transportation channel. Comprising a supporting structure, a cross beam, straight plates, bent plates and protective components. The supporting component comprises at least one bottom column part vertically connected with a supporting bottom column and a supporting frame in threaded connection with the top of the bottom column part, the supporting structure comprises two supporting components vertically arranged on the ground and a cross beam in threaded connection with the tops of the two supporting components, and protection components are symmetrically arranged at the two ends of the cross beam; the protection parts close to each other are connected in sequence; a plurality of groups of supporting structures are uniformly arranged at the bottoms of the straight plates and the bent plates, at least one straight plate is sequentially connected to form a straight plate path, at least one bent plate is sequentially connected to form a bent plate path, and the bent plate path is arranged between the two straight plate paths.

An assembly type pedestrian overpass component belongs to the technical field of bridge engineering, comprises a main beam, a bridge floor, bridge piers and stairway beams, and is characterized in that the main beam and the bridge floor are concrete prefabricated components; the main beams are a pair of H-shaped concrete main beams, brackets are correspondingly arranged on the pair of H-shaped concrete main beams, the bridge deck is a prefabricated bridge deck slab, and the prefabricated bridge deck slab is supported between the two H-shaped concrete main beams through the brackets; the H-shaped concrete main beam is arranged in the main beam groove; transverse partition plates are arranged on the lower portion of the H-shaped concrete main beam at intervals, a prestress system is arranged in the H-shaped concrete main beam, and the stairway beam is supported on a pier through a high supporting block and connected with the H-shaped concrete main beam. The utility model has the advantages of high construction efficiency, excellent structural performance, low construction and maintenance cost and good landscape effect. The pedestrian overpass can be applied to various roads where pedestrian overpasses need to be built.

The utility model relates to the technical field of bridge engineering, and provides a rapidly-assembled mixed type foot bridge which comprises steel pull rods, first steel supporting rods, steel pipe stand columns, steel plate composite beams and inner pile foundations. The steel pipe stand columns penetrate through the through holes and are connected with the inner pile foundations, one ends of the steel pull rods are connected with the center line portion of the steel plate combination beam, the other ends of the steel pull rods are connected with the tops of the steel pipe stand columns, one ends of the first steel supporting rods are connected with the center line portion of the steel plate combination beam, and the other ends of the first steel supporting rods are connected with the inner pile foundations. The large-span supporting type foot bridge has the technical advantage of large span of a supporting type foot bridge, and can meet the bridge building requirements of different spans; in addition, due to the adoption of the pure steel connecting structure design, the technical advantages of being short in construction period and high in bridge building efficiency are further achieved.

The invention relates to an automatic unfolding device and method for a folding light-weight first-aid repair beam. The folding type lightweight first-aid repair beam is composed of two same ruts, each rut is composed of a middle bridge section and two side bridge sections, and the middle bridge sections and the side bridge sections are hinged to form the folding type ruts. The unfolding device comprises a traction rope, a driving device, a descent control device, a descent control rope and a truck-mounted crane; slow descent rope connecting holes connected with one ends of slow descent ropes are formed in the outermost ends of the side bridge sections, the other ends of the slow descent ropes are connected with slow descent devices, the slow descent devices are connected to truck-mounted crane lifting hooks, and lifting rope connecting holes are formed in the middle bridge sections; a traction rope connecting guide structure is arranged on a bridge section of the track; the driving devices are arranged in the side bridge sections or are independent of the ruts, the driving devices are connected with the traction ropes, and the driving devices tighten the traction ropes to unfold the folded ruts in the air. The method has low requirements on matched transport vehicles such as truck-mounted cranes and hoisting equipment, and is wide in application range.

The utility model discloses a wooden trestle convenient to mount and demount, which comprises bottom frames positioned on two sides, a plurality of cross beams are arranged between the bottom frames, support plates are arranged on two sides of the upper ends of the cross beams, a plurality of handrails are vertically arranged at the upper ends of the bottom frames, and a plurality of limiting rods are arranged between the adjacent handrails. Handrails are correspondingly arranged at the upper ends of the handrails, and a locking mechanism is arranged in the bottom frame. According to the utility model, the cross beam and the handrails can be fixed through the arranged locking mechanism, so that the mounting and dismounting time can be shortened, and the connecting strength of the handrails can be improved through the arranged limiting rods and handrails.

The invention relates to a construction method for treating the height difference between a trestle plate and the ground. The construction method comprises the following steps that the trestle plate is constructed in a foundation pit excavated in a construction area; a plurality of first supporting columns are arranged between the trestle plate and the ground on the outer side of the foundation pit; a supporting beam is constructed above the multiple first supporting columns; a transition plate is constructed on the supporting beam; and slope filling is carried out above the transition plate, and the height difference between the plate surface of the transition plate and the ground is transited through a slope surface formed by slope filling. According to the construction method for treating the height difference between the trestle plate and the ground, the transition plate is constructed and the slope is filled on the transition plate, so that the height difference between the trestle plate and the ground is slowly transited, normal passing of on-site vehicles and personnel can be met, and the construction method is attractive and elegant in appearance and more convenient to pass after implementation.

The utility model relates to a kind of temporary bridge deck for water conservancy project, belong to temporary bridge deck technical field, including support column and the top plate fixedly connected in the top end of support column, the outside of the support column is provided with the support reinforcing structure extending to its bottom, the support reinforcing structure includes the fixed sleeve fixedly connected to the outside of support column, the outside fixed connection of the fixed sleeve has first hinged member.That temporary bridge deck for water conservancy project, by setting first hinged member and support strut, support strut can be rotated, further by setting earth peg, support strut can be fixed on ground, while cooperating with support column, entire device can be in stable state, while by setting second hinged member and hinged rod, support strut can be reinforced while ensuring not to affect support strut storage, further improve the stability of whole, avoid in the condition of shaking.

The proposed advanced construction system to protect wildlife is a creative and lasting solution to prevent human-animal conflict. The guard wall consists of different pre-cast stones, elements and locking arrangements. Slant and protrusion effect in constructing the wall and foldable bridge ensures the strong barrier against any kind of animal to cross over wildlife area in to human settlement. Further, there is a ditch soon after the wall to the wildlife area and then a slop which ensures the stress-less habituation for wildlife. In addition it will also completely eradicate the issues of property and crop loses by the elephants and other wild animals. Safety underpasses in rail and motorways, safety arrangements in waterways made it a complete solution to the human-animal conflict while safeguarding animals. An island can be constructed which demarcated with a guard wall for domesticated animals. The solution promotes the tourism industry in the area.

The road surface construction structure comprises a telescopic platform and auxiliary ladders arranged on the two sides of the telescopic platform, the telescopic platform comprises a supporting plate, an adjusting frame, a telescopic adjusting assembly and an L-shaped adjusting plate, the adjusting frame is connected to the upper end of the supporting plate, long grooves are formed in the two sides of the adjusting frame, the side end of the L-shaped adjusting plate is connected with the auxiliary ladders, and the telescopic adjusting assembly is connected with the auxiliary ladders. The front end of the L-shaped adjusting plate extends into the long groove; the auxiliary ladder comprises a ladder frame, ladder plates and handrails, rollers are arranged on the bottom side of the ladder frame, the multiple ladder plates which are obliquely distributed are arranged on the slope surface of the ladder frame, and the handrails are arranged on the two sides of the top side of the ladder frame. The telescopic ladder has high flexibility, safety, stability and durability, through the reasonable design of the telescopic platform and the auxiliary ladder, safe passing of personnel in the construction process can be guaranteed, and the influence of construction on road surface use and the surrounding environment is effectively avoided.

The present invention relates to the technical field of bridges, and specifically relates to a prefabricated bridge, which includes a first bridge section and a second bridge section. There is a gap between the first bridge section and the second bridge section, and a fixing unit for fixing the first bridge section and the second bridge section is installed between the first bridge section and the second bridge section. Each fixing unit includes a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod are rotatably connected. A third connecting rod is rotatably connected between the first connecting rod, the second connecting rod and the first bridge section. A fourth connecting rod is rotatably connected between the first connecting rod, the second connecting rod and the second bridge section. The rotation axes of the third connecting rods form an isosceles trapezoid, and the rotation axes of the fourth connecting rods form an isosceles trapezoid. A fifth connecting rod is rotatably connected between the first connecting rod and the second connecting rod. The first connecting rod and the second connecting rod are made of the same material, and the thermal expansion coefficients of the fifth connecting rods and the first connecting rod are different. The present invention reduces the influence caused by thermal expansion and contraction after the bridge sections are fixed.

This invention relates to the field of trestle technology, and more particularly to a trestle structure for modular splicing construction, comprising several frame mechanisms spliced ​​sequentially along the front-to-back direction. Each frame mechanism includes two parallel support beams, with several crossbeams fixedly connected between the two support beams. A T-shaped cover is slidably connected to the upper surface of the middle crossbeam, and bridge plates are inserted into the front and rear surfaces of the T-shaped cover, respectively. The bridge plates are laid on the upper surfaces of the support beams and crossbeams. A bent plate is fixedly connected to one end of the T-shaped cover, and a gravity plate is slidably connected to the other end of the T-shaped cover. The bent plate and the gravity plate are respectively close to the two side edges of the bridge plate. This invention adopts a U-shaped sealing and water-blocking structure, with closed-loop protection at the curved edge of the bridge plate, combined with boltless connection, effectively preventing seepage and mud accumulation, preventing silt from squeezing the splicing gap, extending service life, facilitating assembly and disassembly, and significantly improving the efficiency of steel trestle paving and disassembly construction.

The utility model provides a lifting type wave compensation trestle which comprises a lifting assembly, a wave compensation assembly and a trestle assembly. The lifting assembly comprises a lifting driving part, a transmission gear, a fixed rack, a transmission rack and a lifting platform; the fixed rack and the transmission rack extend in the lifting direction of the lifting assembly, the fixed rack is fixedly installed on a deck of the ship and meshed with the first side of the transmission gear, the transmission rack is meshed with the second side, opposite to the first side, of the transmission gear, and the lifting driving part is connected with the transmission gear and drives the transmission gear to move along the fixed rack. The transmission rack is driven to move between a first position and a second position; the bottom of the lifting platform is connected to the end, away from the lifting driving part, of the transmission rack. The wave compensation assembly is installed on the top surface of the lifting platform. The problems that in the prior art, the efficiency of butt joint of a trestle, an offshore floating body and a fixed platform is low, and the safety risk is large are solved.

This application relates to a steel trestle bridge and its construction method, belonging to the field of bridge construction. The steel trestle bridge includes: pile foundations; a Bailey bridge frame fixed to the upper side of the pile foundations; a bridge deck fixed to the upper side of the Bailey bridge frame; two guardrails, each hinged to one side of the bridge deck; and a drive mechanism located on the lower side of the bridge deck to drive the guardrails to stand vertically on both sides of the bridge deck or to lie flat on both sides of the bridge deck. This application facilitates the passing of two vehicles traveling in opposite directions, improving traffic efficiency.